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Production method of cast iron retainer with self-lubricating performance

A cage and cast iron technology, applied in the field of mold hardware accessories, can solve the problems of complex preparation process and high implementation cost, and achieve the effects of simple process implementation, reasonable process arrangement, and improved wear resistance and service life.

Inactive Publication Date: 2015-12-30
苏州市大力电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of reducing wear can be achieved by using lubricant or improving the structure of the cage, but the implementation cost of the above measures is high, or the preparation process is complicated, and it cannot fundamentally solve the problem of cage lubrication

Method used

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  • Production method of cast iron retainer with self-lubricating performance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The specific manufacturing steps of the self-lubricating cast iron cage mentioned in the present invention are as follows:

[0019] a) Material selection and preparation, the main components and percentage ratio of the cast iron cage are: C3.6%, Si2.1%, Mn0.7%, Mg4.5%, RESiFe1.7%, 75SiFe1%, MoS24 %, trace alloy 0.3%, impurity below 0.05%, and the rest is Fe; among them, Mg and RESiFe components are used as nodularizers for cage materials; 75SiFe components are used as inoculants for cage materials; MoS2 components are used as self-lubricating cage materials additives; trace alloys include Cu, Cr, Mo, Ni, Zn, Bi, Sb, Pb, etc.; impurities include P and S, the content of P is controlled below 0.03%, and the content of S is controlled at 0.01%-0.02%;

[0020] b) Melting and mixing, first, add a certain amount of scrap steel and pig iron to the medium-frequency induction furnace, the temperature of the induction furnace is controlled at 1350°C-1380°C, completely melt and rem...

Embodiment 2

[0026] The specific manufacturing steps of the self-lubricating cast iron cage mentioned in the present invention are as follows:

[0027] a) Material selection and preparation, the main components and percentage ratio of the cast iron cage are: C3.7%, Si2.2%, Mn0.75%, Mg5%, RESiFe1.5%%, 75SiFe1.2%, MoS24.5%, trace alloy 0.25%, impurities less than 0.05%, and the rest is Fe; among them, Mg and RESiFe components are used as nodularizers for cage materials; 75SiFe components are used as inoculants for cage materials; MoS2 components are used as cage materials self-lubricating agent; trace alloys include Cu, Cr, Mo, Ni, Zn, Bi, Sb, Pb, etc.; impurities include P and S, the content of P is controlled below 0.03%, and the content of S is controlled at 0.01%-0.02% ;

[0028] b) Melting and mixing, first, add a certain amount of scrap steel and pig iron to the medium-frequency induction furnace, and the temperature of the induction furnace is controlled at 1380°C-1400°C to completel...

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Abstract

The invention discloses a production method of a cast iron retainer with self-lubricating performance. The preparation method includes the steps: a, selecting and preparing materials; b, fusing and mixing the materials; c, performing modification; d, performing casting molding; e, performing thermal treatment; f, performing post-finishing of finished products. The preparation method has reasonably arranged steps, the process is simple to implement, the preparation cost is moderate, the added alloy elements may comprehensively improve various properties of the retainer, a more stable and excellent strengthening phase is formed, MoS2 molecules impart good self-lubricating performance to the retainer, and effective improvement is given to both wear resistance and service life of the retainer.

Description

technical field [0001] The invention relates to a preparation method of a cage, in particular to a preparation method of a cast iron cage with self-lubricating performance, and belongs to the technical field of mold hardware accessories. Background technique [0002] The bearing cage refers to the bearing part that partially wraps all or part of the rolling body and moves with it. It is used to isolate the rolling body, and usually guides the rolling body and keeps it in the bearing. The strength and stability of the bearing cage directly Affect the quality and service life of the bearing. When the rolling bearing is working, the bearing heats up and wears due to sliding friction. Especially under high temperature operating conditions, the action of inertial centrifugal force intensifies the friction, wear and heat. In severe cases, the cage will be burned or broken, resulting in the bearing not working properly. Therefore, in addition to a certain strength, the material of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C33/08C21D5/00
Inventor 陈平
Owner 苏州市大力电器有限公司
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